Choose the one alternative that best completes the statement or answers the question. -You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed

Choose the one alternative that best completes the statement or answers the question.
-You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over the 12 km drive will be

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